Tag: CSS

1. CSS Containment Strategies in Detail

   Mar 20, 2026

   A single change inside a widget often triggers a style recalculation for the entire page in the browser, because cascade and layout act globally by default. CSS containment deliberately limits this blast radius to individual components, turning unpredictable rendering cost into a predictable, local matter.

   Read more

2. Attribute Selectors: Advanced Patterns

   Mar 18, 2026

   Attribute selectors are usually reduced to [class] and [id], yet the specification includes prefix, suffix and substring matching, a case-insensitive flag, and the ability to use data attributes as a complete styling interface. This recipe collection shows how much declarative logic lives inside the selector alone.

   Read more

3. CSS oklch() Color Space: Better Colors on the Web 2026

   Mar 16, 2026

   oklch() is the most modern color space in CSS Color Level 4 and solves fundamental problems of hsl() and rgb(): the lightness axis is perceptually uniform, gradients no longer pass through desaturated gray tones, and access to the P3 display gamut enables more vivid colors on modern screens, directly in the browser, with no image editing software required.

   Read more

4. CSS Focus Management and Keyboard Navigation: :focus-visible, :focus-within

   Mar 10, 2026

   Good focus management separates web development from accessible web development. :focus-visible shows the focus ring only during keyboard use, :focus-within enables container-level reactions, and together with correct outline styles that follow WCAG they form the foundation for keyboard navigation without compromising visual design.

   Read more

5. CSS Animation Performance and GPU Compositing

   Mar 8, 2026

   A CSS animation running on the compositor thread cannot be blocked by the JavaScript main thread. Anyone who wants to understand why some animations flow at 60fps while others stutter needs to know the path from CSS property to GPU layer, and when will-change helps instead of hurts.

   Read more

6. CSS Custom Highlights API: Style Text Highlights Programmatically

   Mar 1, 2026

   Highlighting search terms, visualizing diff changes, marking voice recognition matches: until now, all of this required wrapping text nodes in span elements, which corrupts the DOM and jeopardizes accessibility. The CSS Custom Highlights API solves this problem elegantly: define ranges, register them, style them with ::highlight(), done.

   Read more

7. Sticky Checkout Summary with CSS: The Cart Overview That Scrolls Along

   Feb 23, 2026

   A sticky checkout summary sounds like a single CSS line, yet position sticky regularly breaks in checkout due to overflow containers, wrong height calculations and stacking context traps. With dvh units, a clean scroll container and the right grid structure, the cart overview stays reliably visible while the user scrolls through the checkout steps.

   Read more

8. appearance: none for Custom Select Boxes: The Complete Guide

   Feb 18, 2026

   The native browser arrow of a select element rarely matches a carefully considered design system, and appearance: none removes exactly that one visual detail, without impairing built in keyboard control, type ahead search, or screen reader announcement. Anyone who uses this technique correctly saves the entire rebuild of a dropdown in JavaScript.

   Read more

9. BEM, Utility First and CSS Modules Compared in 2026

   Feb 10, 2026

   Choosing the right CSS methodology determines maintainability, onboarding time and refactoring cost for years to come. BEM, Utility First and CSS Modules solve the same core problem, naming collisions and uncontrolled cascade, with fundamentally different trade offs in readability, build complexity and team discipline.

   Read more

10. is() and where() for Deliberate Specificity Control

    Feb 4, 2026

    is and where are usually introduced as a plain shortcut for long selector lists, yet their biggest value lies in specificity control. where() creates zero specificity for resets and design systems, is() inherits the highest specificity of its argument, without developers having to spell out every combination manually.

    Read more